Behind the Scenes at the Iran Talks & Donald Trump's Money

Over months of negotiations at the Iran nuclear talks, several key players are people you've never heard of including the head of the Atomic Energy Organization of Iran Ali Akbar Salehi. David Sanger explains the vital role he played. Plus, Indira Lakshmanan reports on the intense negotiations between Secretary of State John Kerry and his Iranian counterpart Javad Zarif.